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Other articles (62)

  • Le profil des utilisateurs

    12 April 2011, by

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

  • HTML5 audio and video support

    13 April 2011, by

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • Configurer la prise en compte des langues

    15 November 2010, by

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

On other websites (4810)

  • Overlay filter in LibAV/FFMpeg returns strange (tripled) frame in C

    28 July 2014, by gkuczera

    I tried to make a program, which merges two frames. I use LibAV (libav-win32-20140428) under Windows 7 64 and Visual Studio 2013.
    But the result is quite odd.

    http://oi58.tinypic.com/rcobnm.jpg

    The filter which was used is Overlay. When I change the graph, to the one, that uses only one stream and add FADE effect, everything works like a charm. But OVERLAY and eg. DRAWBOX give me strange distortion (three frames on one and black and white effect). Here is the code:

    static int init_filter_graph(AVFilterGraph **pGraph, AVFilterContext **pSrc1, AVFilterContext **pSink)
    
{
    
    AVFilterGraph* tFilterGraph;
    
    AVFilterContext* tBufferContext1;
    
    AVFilter* tBuffer1;
    
    AVFilterContext* tColorContext;
    
    AVFilter* tColor;
    
    AVFilterContext* tOverlayContext;
    
    AVFilter* tOverlay;
    
    AVFilterContext* tBufferSinkContext;
    
    AVFilter* tBufferSink;
    

    
    int tError;
    

    
    /* Create a new filtergraph, which will contain all the filters. */
    
    tFilterGraph = avfilter_graph_alloc();
    

    
    if (!tFilterGraph) {
    
        return -1;
    
    }
    

    
    { // BUFFER FILTER 1
    
        tBuffer1 = avfilter_get_by_name("buffer");
    
        if (!tBuffer1) {
    
            return -1;
    
        }
    
        tBufferContext1 = avfilter_graph_alloc_filter(tFilterGraph, tBuffer1, "src1");
    
        if (!tBufferContext1) {
    
            return -1;
    
        }
    

    
        av_dict_set(&tOptionsDict, "width", "320", 0);
    
        av_dict_set(&tOptionsDict, "height", "240", 0);
    
        av_dict_set(&tOptionsDict, "pix_fmt", "bgr24", 0);
    
        av_dict_set(&tOptionsDict, "time_base", "1/25", 0);
    
        av_dict_set(&tOptionsDict, "sar", "1", 0);
    
        tError = avfilter_init_dict(tBufferContext1, &tOptionsDict);
    
        av_dict_free(&tOptionsDict);
    
        if (tError < 0) {
    
            return tError;
    
        }
    
    }
    

    
    { // COLOR FILTER
    
        tColor = avfilter_get_by_name("color");
    
        if (!tColor) {
    
            return -1;
    
        }
    
        tColorContext = avfilter_graph_alloc_filter(tFilterGraph, tColor, "color");
    
        if (!tColorContext) {
    
            return -1;
    
        }
    

    
        av_dict_set(&tOptionsDict, "color", "white", 0);
    
        av_dict_set(&tOptionsDict, "size", "20x120", 0);
    
        av_dict_set(&tOptionsDict, "framerate", "1/25", 0);
    
        tError = avfilter_init_dict(tColorContext, &tOptionsDict);
    
        av_dict_free(&tOptionsDict);
    
        if (tError < 0) {
    
            return tError;
    
        }
    
    }
    

    
    { // OVERLAY FILTER
    
        tOverlay = avfilter_get_by_name("overlay");
    
        if (!tOverlay) {
    
            return -1;
    
        }
    
        tOverlayContext = avfilter_graph_alloc_filter(tFilterGraph, tOverlay, "overlay");
    
        if (!tOverlayContext) {
    
            return -1;
    
        }
    

    
        av_dict_set(&tOptionsDict, "x", "0", 0);
    
        av_dict_set(&tOptionsDict, "y", "0", 0);
    
        av_dict_set(&tOptionsDict, "main_w", "120", 0);
    
        av_dict_set(&tOptionsDict, "main_h", "140", 0);
    
        av_dict_set(&tOptionsDict, "overlay_w", "320", 0);
    
        av_dict_set(&tOptionsDict, "overlay_h", "240", 0);
    
        tError = avfilter_init_dict(tOverlayContext, &tOptionsDict);
    
        av_dict_free(&tOptionsDict);
    
        if (tError < 0) {
    
            return tError;
    
        }
    
    }
    

    
    { // BUFFERSINK FILTER
    
        tBufferSink = avfilter_get_by_name("buffersink");
    
        if (!tBufferSink) {
    
            return -1;
    
        }
    

    
        tBufferSinkContext = avfilter_graph_alloc_filter(tFilterGraph, tBufferSink, "sink");
    
        if (!tBufferSinkContext) {
    
            return -1;
    
        }
    

    
        tError = avfilter_init_str(tBufferSinkContext, NULL);
    
        if (tError < 0) {
    
            return tError;
    
        }
    
    }
    

    
    // Linking graph
    
    tError = avfilter_link(tBufferContext1, 0, tOverlayContext, 0);
    
    if (tError >= 0) {
    
        tError = avfilter_link(tColorContext, 0, tOverlayContext, 1);
    
    }
    
    if (tError >= 0) {
    
        tError = avfilter_link(tOverlayContext, 0, tBufferSinkContext, 0);
    
    }
    
    if (tError < 0) {
    
        return tError;
    
    }
    

    
    tError = avfilter_graph_config(tFilterGraph, NULL);
    
    if (tError < 0) {
    
        return tError;
    
    }
    

    
    *pGraph = tFilterGraph;
    
    *pSrc1 = tBufferContext1;
    
    *pSink = tBufferSinkContext;
    

    
    return 0;
    
}

    What do you think is the reason?

  • ffmpeg to convert file to webm returns in error

    14 April 2019, by user3184895

    i have a self-recorded file in .ts format and want to convert it to three different formats(.mp4, .ogg and .webm).

    for that i use my brandnew debian9 with following commands:

    /usr/bin/ffmpeg -y -i source.ts -strict experimental -r 25 -b 18550k -bt 22792k -acodec aac -ac 2 -ar 48000 -ab 320k output.mp4

    /usr/bin/ffmpeg -y -i source.ts -r 25 -b 18550k -bt 22792k -vcodec libtheora -acodec libvorbis -ac 2 -ar 48000 -ab 320k output.ogg

    /usr/bin/ffmpeg -y -i source.ts -r 25 -b 18550k -bt 22792k -ac 2 -ar 48000 -ab 320k output.webm

    Source-File:

    General
    
ID                                       : 1019 (0x3FB)
    
Complete name                            : test.ts
    
Format                                   : MPEG-TS
    
File size                                : 85.9 MiB
    
Duration                                 : 56 s 490 ms
    
Overall bit rate mode                    : Variable
    
Overall bit rate                         : 12.7 Mb/s
    

    
Video
    
ID                                       : 5101 (0x13ED)
    
Menu ID                                  : 10301 (0x283D)
    
Format                                   : AVC
    
Format/Info                              : Advanced Video Codec
    
Format profile                           : High@L4
    
Format settings, CABAC                   : Yes
    
Format settings, ReFrames                : 4 frames
    
Codec ID                                 : 27
    
Duration                                 : 55 s 880 ms
    
Bit rate                                 : 11.1 Mb/s
    
Width                                    : 1 280 pixels
    
Height                                   : 720 pixels
    
Display aspect ratio                     : 16:9
    
Frame rate                               : 50.000 FPS
    
Color space                              : YUV
    
Chroma subsampling                       : 4:2:0
    
Bit depth                                : 8 bits
    
Scan type                                : Progressive
    
Bits/(Pixel*Frame)                       : 0.241
    
Stream size                              : 74.1 MiB (86%)
    

    
Audio #1
    
ID                                       : 5102 (0x13EE)
    
Menu ID                                  : 10301 (0x283D)
    
Format                                   : MPEG Audio
    
Format version                           : Version 1
    
Format profile                           : Layer 2
    
Codec ID                                 : 3
    
Duration                                 : 56 s 448 ms
    
Bit rate mode                            : Constant
    
Bit rate                                 : 256 kb/s
    
Channel(s)                               : 2 channels
    
Sampling rate                            : 48.0 kHz
    
Compression mode                         : Lossy
    
Delay relative to video                  : -1 s 136 ms
    
Stream size                              : 1.72 MiB (2%)
    
Language                                 : German
    

    
Audio #2
    
ID                                       : 5103 (0x13EF)
    
Menu ID                                  : 10301 (0x283D)
    
Format                                   : MPEG Audio
    
Format version                           : Version 1
    
Format profile                           : Layer 2
    
Codec ID                                 : 3
    
Duration                                 : 56 s 448 ms
    
Bit rate mode                            : Constant
    
Bit rate                                 : 256 kb/s
    
Channel(s)                               : 2 channels
    
Sampling rate                            : 48.0 kHz
    
Compression mode                         : Lossy
    
Delay relative to video                  : -1 s 136 ms
    
Stream size                              : 1.72 MiB (2%)
    
descriptor_tag_extension                 : 6
    

    
Audio #3
    
ID                                       : 5106 (0x13F2)
    
Menu ID                                  : 10301 (0x283D)
    
Format                                   : AC-3
    
Format/Info                              : Audio Coding 3
    
Mode extension                           : CM (complete main)
    
Format settings, Endianness              : Big
    
Codec ID                                 : 6
    
Duration                                 : 56 s 480 ms
    
Bit rate mode                            : Constant
    
Bit rate                                 : 448 kb/s
    
Channel(s)                               : 2 channels
    
Channel positions                        : Front: L R
    
Sampling rate                            : 48.0 kHz
    
Frame rate                               : 31.250 FPS (1536 spf)
    
Bit depth                                : 16 bits
    
Compression mode                         : Lossy
    
Delay relative to video                  : -1 s 168 ms
    
Stream size                              : 3.02 MiB (4%)
    
Language                                 : German
    

    
Text
    
ID                                       : 5105 (0x13F1)
    
Menu ID                                  : 10301 (0x283D)
    
Format                                   : DVB Subtitle
    
Codec ID                                 : 6
    
Duration                                 : 54 s 800 ms
    
Delay relative to video                  : 2 s 520 ms
    
Language                                 : German
    

    
Other
    
ID                                       : 5104 (0x13F0)-100
    
Menu ID                                  : 10301 (0x283D)
    
Format                                   : Teletext
    
Language                                 : German
    

    
Menu
    
ID                                       : 5100 (0x13EC)
    
Menu ID                                  : 10301 (0x283D)
    
Duration                                 : 56 s 490 ms
    
List                                     : 1170 (0x492) () / 1176 (0x498) () / 2171 (0x87B) () / 5101 (0x13ED) (AVC) / 5102 (0x13EE) (MPEG Audio, German) / 5103 (0x13EF) (MPEG Audio) / 5104 (0x13F0)-100 (Teletext, de) / 5105 (0x13F1) (DVB Subtitle, German) / 5106 (0x13F2) (AC-3, German) / 5108 (0x13F4) () / 5172 (0x1434) ()
    
Language                                 :  /  /  /  / German /  / German / German / German

    Why i am doing that? I just play arround with a privat intranet (web-application) to stream my own recorded files on different clients (Smartphone, Tablet, Desktop). Thats also the reason for the different formats (.mp4, .ogg, .webm)

    My current problem is: The command to convert it to .webm returns following error:

     /usr/bin/ffmpeg -y -i test.ts -r 25 -b 18550k -bt 22792k -ac 2 -ar 48000 -ab 320k output.webm
    
ffmpeg version 3.2.12-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
    
  configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
    
  libavutil      55. 34.101 / 55. 34.101
    
  libavcodec     57. 64.101 / 57. 64.101
    
  libavformat    57. 56.101 / 57. 56.101
    
  libavdevice    57.  1.100 / 57.  1.100
    
  libavfilter     6. 65.100 /  6. 65.100
    
  libavresample   3.  1.  0 /  3.  1.  0
    
  libswscale      4.  2.100 /  4.  2.100
    
  libswresample   2.  3.100 /  2.  3.100
    
  libpostproc    54.  1.100 / 54.  1.100
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] SPS unavailable in decode_picture_timing
    
[h264 @ 0x557535b03b40] non-existing PPS 0 referenced
    
[h264 @ 0x557535b03b40] decode_slice_header error
    
[h264 @ 0x557535b03b40] no frame!
    
[mpegts @ 0x557535ade440] start time for stream 9 is not set in estimate_timings_from_pts
    
[mpegts @ 0x557535ade440] PES packet size mismatch
    
[mpegts @ 0x557535ade440] Could not find codec parameters for stream 0 (Unknown: none ([5][0][0][0] / 0x0005)): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[mpegts @ 0x557535ade440] Could not find codec parameters for stream 1 (Unknown: none ([12][0][0][0] / 0x000C)): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[mpegts @ 0x557535ade440] Could not find codec parameters for stream 2 (Unknown: none ([11][0][0][0] / 0x000B)): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[mpegts @ 0x557535ade440] Could not find codec parameters for stream 10 (Unknown: none ([11][0][0][0] / 0x000B)): unknown codec
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
Input #0, mpegts, from 'test.ts':
    
  Duration: 00:00:58.04, start: 86615.181389, bitrate: 12418 kb/s
    
  Program 10301
    
    Stream #0:0[0x492]: Unknown: none ([5][0][0][0] / 0x0005)
    
    Stream #0:1[0x498]: Unknown: none ([12][0][0][0] / 0x000C)
    
    Stream #0:2[0x87b]: Unknown: none ([11][0][0][0] / 0x000B)
    
    Stream #0:3[0x13ed]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn, 100 tbc
    
    Stream #0:4[0x13ee](deu): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 256 kb/s
    
    Stream #0:5[0x13ef](mis): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 256 kb/s
    
    Stream #0:6[0x13f0](deu): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006)
    
    Stream #0:7[0x13f1](deu): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) (hearing impaired)
    
    Stream #0:8[0x13f2](deu): Audio: ac3 ([6][0][0][0] / 0x0006), 48000 Hz, stereo, fltp, 448 kb/s
    
    Stream #0:9[0x13f4]: Data: bin_data ([6][0][0][0] / 0x0006)
    
    Stream #0:10[0x1434]: Unknown: none ([11][0][0][0] / 0x000B)
    
  Program 10302
    
  Program 10303
    
  Program 10304
    
Please use -b:a or -b:v, -b is ambiguous
    
[libvpx-vp9 @ 0x557535ba6d00] v1.6.1
    
Stream mapping:
    
  Stream #0:3 -> #0:0 (h264 (native) -> vp9 (libvpx-vp9))
    
  Stream #0:4 -> #0:1 (mp2 (native) -> opus (libopus))
    
  Stream #0:6 -> #0:2 (dvb_teletext (libzvbi_teletextdec) -> webvtt (native))
    
Error while opening encoder for output stream #0:2 - maybe incorrect parameters such as bit_rate, rate, width or height

    i dont understand the problem, because the convertions to .ogg or .mp4 are workin. So i cannot be a problem with the source-codecs. Does anyone have any idea what my problem might be

  • Resize to a specific width and height using ffmpeg

    15 June 2014, by Lambda Dusk

    I need to generate thumbnails for videos, automatically. I cannot predict the format of the video, but I need the thumbnail to be 220x120 pixels, always. Using -s 220x120 produces a weird stretch, just like -vf "scale=220:120". I’d like the stretching to be uniform, either cutting away top and bottom if the video is too high or adding black borders.

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